Home / 39,788.39-59,681.71-18,716.75

Finding the Fourth Proportional to 39,788.39, 59,681.71 and 18,716.75

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Solution

The fourth proportional to 39,788.39, 59,681.71 and 18,716.75 is: 28,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,788.39 : 59,681.71 = 18,716.75 : x
  2. Step 2: Convert to fraction form
    39,788.39/59,681.71 = 18,716.75/x
  3. Step 3: Cross multiply
    39,788.39x = 59,681.71 × 18,716.75
  4. Step 4: Simplify right side
    39,788.39x = 1,117,047,426.58
  5. Step 5: Solve for x
    x = 1,117,047,426.58/39,788.39
  6. Step 6: Final answer
    x = 28,074.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.